vagrant plugin install vagrant-libvirt Installing the ‘vagrant-libvirt’ plugin. This can take a few minutes… Bundler, the underlying system Vagrant uses to install plugins, reported an error. The error is shown below. These errors are usually caused by misconfigured plugin installations or transient network issues. The error from Bundler is: An error occurred while installing ruby-libvirt (0.5.2), and Bundler cannot continue. Make sure that `gem install ruby-libvirt -v ‘0.5.2’` succeeds before bundling. Warning: this Gemfile contains multiple primary sources….